This is a cheatsheat for the Block Kit API, great for referencing when wireframing out Slack interactions.
-
5 elements in an Action Block
-
10 elements in a Context Block
-
150 characters in the
text
field of a Header Block -
3000 characters in the
image_url
field of an Image Block -
2000 characters in the
text
field of an Image Block -
2000 characters in the
hint
field of an Input Block -
3000 characters in the
text
field of an Section Block -
10
Fields
in thefields
field of an Section Block
- 10
Options
in theoptions
field of a Checkbox Component
- 255 characters in a
block_id